Charles and Nellie clash over the treatment of a paranoid patient.

Ethan treats a pregnant patient from Hannah’s past.

Crockett and Vanessa help a man who needs a risky neurosurgery.

Air Date: Wednesday, Oct. 5 (8-9 p.m. ET) on NBC.

NUP_198711_01578.jpg

Picture 10 of 14

CHICAGO MED -- "Winning the Battle, but Still Loosing the War" Episode 803 -- Pictured: Brian Tee as Ethan Choi -- (Photo by: George Burns Jr/NBC)